Cleartext Storage of Sensitive Information vulnerability in Mitsubishi Electric GX Works3 versions from 1.000A to 1.095Z and Mitsubishi Ele…

published 2022-11-24 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-29907

cvss: 8.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits: 0; none known

Cleartext Storage of Sensitive Information vulnerability in Mitsubishi Electric GX Works3 versions from 1.000A to 1.095Z and Mitsubishi Electric MX OPC UA Module Configurator-R versions 1.08J and prior allows a remote unauthenticated attacker to disclose sensitive information. As a result, unauthenticated attackers can gain unauthorized access to the MELSEC CPU module and the MELSEC OPC UA server module.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-333-05 updated 2025-11-25 cvss 8.6

Mitsubishi Electric FA Engineering Software (Update C)

Mitsubishi Electric GX Works3 >=1.000A, <1.011M, >=1.015R, <1.087R, 1.090U, 1.095Z Mitsubishi Electric MX OPC UA Module Configurator-R <=1.08J
affected: vendor fix, mitigation “Mitsubishi Electric released and recommends users update to the latest version:” mitsubishielectric.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 18 mo ago (2025-04-25)

Exploit prediction

0.90% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Mitsubishi Electric Corporation GX Works3
Mitsubishi Electric Corporation MX OPC UA Module Configurator-R

Classification

Weakness

CWE-312 Cleartext Storage of Sensitive Information

References

mitsubishielectric.com /en/psirt/vulnerability/pdf/2022-015_en.pdf
vendor-advisory, mitigation
jvn.jp /vu/JVNVU97244961/index.html
government-resource, third-party-advisory, vdb-entry
cisa.gov /uscert/ics/advisories/icsa-22-333-05
government-resource

Sources

CVE List CVE-2022-25164
NVD CVE-2022-25164

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary